Mollusca

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Mol·lus·ca

(mo-lŭs'kă),
A phylum of the subkingdom Metazoa with soft, unsegmented bodies, consisting of an anterior head, a dorsal visceral mass and a ventral foot. Most forms are enclosed in a protective calcareous shell. Mollusca includes the classes Gastropoda (snails, whelks, slugs), Pelecypoda (oysters, clams, mussels), Cephalopoda (squids, octopuses), Amphineura (chitons), Scaphopoda (tooth shells), and the class of primitive metameric mollusks, Monoplacophora.
[L. mollusca, a nut with a thin shell, fr. mollis, soft]

Mollusca

(mŏl-lŭs′kă)
A phylum of animals that includes the bivalves (mussels, oysters, clams), slugs, and snails. Snails are intermediate hosts for many parasitic flukes. Oysters, clams, and mussels, esp. if inadequately cooked, may transmit the hepatitis A virus or bacterial pathogens.
References in periodicals archive ?
Phylum Mollusca Class Cephalopoda Enteroctopus megalocyathus Robsonella fontaniana 1.
Phylum Mollusca Class Gastropoda Order Nudibranchia Family Chromodorididae
Dina parva Erpobdella punctata Mooreobdella Mooreobdella fervida Mooreobdella microstoma Glossiphoniidae Helobdella Helobdella stagnalis Placobdella unidentified leeches X X leech cocoons Phylum Mollusca Gastropoda Ancylidae Ferrissia C Hydrobiidae Amnicola X Lymnaeidae X Lymnaea Physidae C Aplexa Physa X X Physella Planorbidae Gyraulus X Helisoma Planorbula X Promenetus X Promenetus?
Abalone belong to the phylum Mollusca, along with clams, scallops, sea slugs, octopuses, and squids.